On Mon, Aug 4, 2008 at 21:10, rosea grammostola <rosea.grammostola@gmail.com> wrote:

Can someone tell me if there is difference between F7 and Fmaj7, what is that difference theoretical spoken?

F7 is a Dominant 7 chord with a major 3rd and minor 7th, while Fmaj7 is Major 7 chord with a major 3rd and major 7th:

http://en.dahnielson.com/2007/03/jazz-notes.html/3/#toc-quality
 
--
Anders Dahnielson
<anders@dahnielson.com>